function MessageTrait::withHeader

File

vendor/guzzlehttp/psr7/src/MessageTrait.php, line 72

Class

MessageTrait

Trait implementing functionality common to requests and responses.

Namespace

GuzzleHttp\Psr7

Code

public function withHeader($header, $value) : MessageInterface {
    $this->assertHeader($header);
    $value = $this->normalizeHeaderValue($value);
    $normalized = strtolower($header);
    $new = clone $this;
    if (isset($new->headerNames[$normalized])) {
        unset($new->headers[$new->headerNames[$normalized]]);
    }
    $new->headerNames[$normalized] = $header;
    $new->headers[$header] = $value;
    return $new;
}